skip to Main Content

Canon Patent for 70-300mm f/4-5.6 Lens

Canon Patent

Egami (translated) spotted another patent filed by Canon.

The patent refers to a 70-300mm f/4-5.6 lens. As Egami notes, it’s a bit early for a replacement of the EF 70-300mm F4-5.6L IS.

Patent description (machine translated):

  • Patent Publication No. 2014-186098
    • Published 2014.10.2
    • Filing date 2013.3.22
  • Example 4
    • Zoom ratio 4.02
    • Focal length f = 72.20-135.09-289.98mm
    • Fno. 4.19-4.63-5.86
    • Half angle ω = 16.68-9.10-4.27 °
    • Image height Y = 21.64mm
    • Overall length of the lens 183.25-214.28-237.12mm
    • BF 43.12-49.21-66.05mm

Canon Patent

Back To Top

Notice

This website or its third-party tools use cookies, which are necessary to its functioning and required to achieve the purposes illustrated in the cookie policy. If you want to know more or withdraw your consent to all or some of the cookies, please refer to the cookie policy.
By closing this banner, scrolling this page, clicking a link or continuing to browse otherwise, you agree to the use of cookies.